Which switch is typically used to manually switch a single circuit between multiple outputs with a knob?

Which switch is typically used to manually switch a single circuit between multiple outputs with a knob?

• A. DPDT
• B. Rocker Switch
• C. Rotary Switch
• D. Push Button Switch

Answer: (C)

The idea being tested is how to route one signal to different outputs using a single control. A rotary switch is designed for exactly that: it has a common input and multiple output taps arranged around a circular dial, and turning the knob moves a wiper to one fixed contact at a time. This creates a discrete, single-path connection from the input to whichever output you select, making it ideal for manually selecting one circuit from many outputs. Other switch types don’t fit this pattern as cleanly. A DPDT switch handles two circuits and can switch between two sets of contacts, which isn’t the standard setup for routing one circuit to many outputs with a knob. Rocker and push-button switches are typically used for on/off or a small number of positions and aren’t built around a rotating selector that connects one input to multiple possible outputs.

The idea being tested is how to route one signal to different outputs using a single control. A rotary switch is designed for exactly that: it has a common input and multiple output taps arranged around a circular dial, and turning the knob moves a wiper to one fixed contact at a time. This creates a discrete, single-path connection from the input to whichever output you select, making it ideal for manually selecting one circuit from many outputs.

Other switch types don’t fit this pattern as cleanly. A DPDT switch handles two circuits and can switch between two sets of contacts, which isn’t the standard setup for routing one circuit to many outputs with a knob. Rocker and push-button switches are typically used for on/off or a small number of positions and aren’t built around a rotating selector that connects one input to multiple possible outputs.